Nasal preparations are mists, sprays, and other mixtures which are meant to be applied directly into the nasal passages in order to alleviate symptoms.
 
 
Recommended Resources
Anti-Infective Nasal Spray for Preventing Influenza and Colds
Addresses the technology which allows influenza medications including vaccination and prophylactic uses.
http://www.cmptherapeutics.com/anti-infective.htm
Clinician’s Ultimate Reference: Nasal Preparations
Breaks down details about various nasal preparations, including Flonase, Nasonex, Neo-Synephrine, and SeaMist, divulges their mechanisms of action, dosage recommendations, and indications for use.
http://www.globalrph.com/nasal.htm
Offers a national network of sinusitis and sinus pain specialists who are experienced and dedicated to achieving excellent results in treating chronic sinusitis and recurrent sinus infections.
http://www.sinucare.com/
Use of Nasal Preparations and the Incidence of Sinonasal Cancer
Elucidates about a study which was meant to determine whether the use of nasal sprays or nasal drops were associated with increased risk of sinonasal cancer.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1052733/